Variation 24

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
HKI199724332
CopyrightID (CopyrightChains transaction hash)
0x26eda771bcd5d7f394b47bdd068b3e8831ef598e057ebb611012c196df8a10fc
Copyright registration time
2026-06-19T23:30:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:cc6f022711307e457a03cf56616a7cf02cd93c6fb35f3e188c12fee608b86773

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.